Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.6 A None of these 0.3 A 0.2 A 0.4 A 0.6 A None of these 0.3 A 0.2 A 0.4 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage? 120 V 180 V 100 V 170 V None of these 120 V 180 V 100 V 170 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A real voltage source has None of these A large internal resistance Zero internal resistance A small internal resistance Infinite internal resistance None of these A large internal resistance Zero internal resistance A small internal resistance Infinite internal resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? The actual frequency of a sine waveform is 1.41 times the working frequency The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz None of these The actual frequency of a sine waveform is 1.41 times the working frequency The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The knee voltage of a diode is approximately equal to the Barrier potential Applied voltage Forward voltage None of these Breakdown voltage Barrier potential Applied voltage Forward voltage None of these Breakdown voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a transistor operates at the middle of the load line, an increase in the current gain will move the Q point down nowhere None of these up off the load line down nowhere None of these up off the load line ANSWER DOWNLOAD EXAMIANS APP
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